Process for the production of electrolyte capacitors of high nominal voltage

A process for the producing an electrolytic capacitor which comprises

• Subjecting a porous electrode body of an electrode material to anodic oxidation for formation of a dielectric which covers the surface of the electrode material,
• Applying a dispersion A) on to the porous body wherein the porous body comprises the porous electrode body of the electrode material and the dielectric,
• wherein said dispersion A) comprises at least particles B) of an electrically conductive polymer and a dispersing agent D), and
• forming a solid electrolyte which completely or partly covers the dielectric surface, and the dispersing agent D) is at least partly removed, in the absence of chemical in situ oxidative polymerization,
• wherein the maximum anodizing voltage during the anodic oxidation of the porous electrode body is greater than 30 V and the particles B) of the conductive polymer in the dispersion A) have an average diameter of from 1 to 100 nm and wherein the particles B) additionally comprise at least one polymeric anion.

A process for the producing an electrolytic capacitor which comprises

• Subjecting a porous electrode body of an electrode material to anodic oxidation for formation of a dielectric which covers the surface of the electrode material,
• Applying a dispersion A) on to the porous body wherein the porous body comprises the porous electrode body of the electrode material and the dielectric,
• wherein said dispersion A) comprises at least particles B) of an electrically conductive polymer and a dispersing agent D), and
• foaming a solid electrolyte which completely or partly covers the dielectric surface, and the dispersing agent D) is at least partly removed and/or cured, in the absence of in situ polymerization,
• wherein the maximum anodizing voltage during the anodic oxidation of the porous electrode body is greater than 30 V and the particles B) of the conductive polymer in the dispersion A) have an average diameter of from 1 to 100 nm, and wherein the dispersion A) has a pH of from 1 to 8 and wherein the particles B) additionally comprise at least one polymeric anion.

A process for the producing an electrolytic capacitor which comprises

• Subjecting a porous electrode body of an electrode material to anodic oxidation for formation of a dielectric which covers the surface of the electrode material,
• Applying a dispersion A) on to the porous body wherein the porous body comprises the porous electrode body of the electrode material and the dielectric,
• wherein said dispersion A) comprises at least particles B) of an electrically conductive polymer and a dispersing agent D), and
• forming a solid electrolyte which completely or partly covers the dielectric surface, and the dispersing agent D) is at least partly removed and/or cured, in the absence of in situ polymerization,
• wherein the maximum anodizing voltage during the anodic oxidation of the porous electrode body is greater than 30 V and the particles B) of the conductive polymer in the dispersion A) have an average diameter of from 1 to 100 nm and wherein the particles B) additionally comprise at least one polymeric anion.